The Structure and Optical Properties of the [Au18(SR)14] Nanocluster |
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| Authors: | Shuang Chen Shuxin Wang Juan Zhong Yongbo Song Dr Jun Zhang Prof Hongting Sheng Prof Yong Pei Prof Manzhou Zhu |
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| Institution: | 1. Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui, 230601 (P.R. China);2. Department of Chemistry, Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Hunan Province 411105 (P.R. China) |
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| Abstract: | Decreasing the core size is one of the best ways to study the evolution from AuI complexes into Au nanoclusters. Toward this goal, we successfully synthesized the Au18(SC6H11)14] nanocluster using the Au18(SG)14] (SG=L ‐glutathione) nanocluster as the starting material to react with cyclohexylthiol, and determined the X‐ray structure of the cyclohexylthiol‐protected Au18(C6H11S)14] nanocluster. The Au18(SR)14] cluster has a Au9 bi‐octahedral kernel (or inner core). This Au9 inner core is built by two octahedral Au6 cores sharing one triangular face. One transitional gold atom is found in the Au9 core, which can also be considered as part of the Au4(SR)5 staple motif. These findings offer new insight in terms of understanding the evolution from AuI(SR)] complexes into Au nanoclusters. |
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| Keywords: | gold nanoclusters structure elucidation sulfur ligands |
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